4999161 has 4 divisors (see below), whose sum is σ = 6665552. Its totient is φ = 3332772.

The previous prime is 4999151. The next prime is 4999177. The reversal of 4999161 is 1619994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4999161 - 2⁶ = 4999097 is a prime.

It is a super-2 number, since 2×4999161² = 49983221407842, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4999121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833191 + ... + 833196.

It is an arithmetic number, because the mean of its divisors is an integer number (1666388).

Almost surely, 2^4999161 is an apocalyptic number.

It is an amenable number.

4999161 is a deficient number, since it is larger than the sum of its proper divisors (1666391).

4999161 is a wasteful number, since it uses less digits than its factorization.

4999161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666390.

The product of its digits is 17496, while the sum is 39.

The square root of 4999161 is about 2235.8803635257. The cubic root of 4999161 is about 170.9880296672.

The spelling of 4999161 in words is "four million, nine hundred ninety-nine thousand, one hundred sixty-one".